I agree with Robert - 24 hours starvation sorts out all, but the very fussiest of eaters
Providing he's old enough to go 24 hours without it having a negative effect on him - probably over about 4 weeks, I think I'd be wary of doing it much before that
Get some ear plugs (drop some in to your neighbours too
) and prepare for the battle of wills - you
have to win, or you'll be forever ruled by this pig
Good luck !
Karen